U.S. patent application number 12/116109 was filed with the patent office on 2008-11-13 for package and method for making a package.
This patent application is currently assigned to Sara Lee Corporation. Invention is credited to Benjamin M. Cichowski.
Application Number | 20080276571 12/116109 |
Document ID | / |
Family ID | 39591074 |
Filed Date | 2008-11-13 |
United States Patent
Application |
20080276571 |
Kind Code |
A1 |
Cichowski; Benjamin M. |
November 13, 2008 |
PACKAGE AND METHOD FOR MAKING A PACKAGE
Abstract
A package includes a first wall, a second wall coupled to the
first wall at a peelably openable seal portion, a gusset coupled to
the first wall and the second wall, wherein the first wall, the
second wall, and gusset define an interior space, a vent portion
provided on at least one of the first wall and the second wall,
wherein the vent portion is configured to permit gases to escape
from the interior space, and a food product provided within the
interior, wherein at least one of the first wall and the second
wall comprises an anti-fog material on a surface facing the
interior space.
Inventors: |
Cichowski; Benjamin M.;
(Naperville, IL) |
Correspondence
Address: |
FOLEY & LARDNER LLP
777 EAST WISCONSIN AVENUE
MILWAUKEE
WI
53202-5306
US
|
Assignee: |
Sara Lee Corporation
|
Family ID: |
39591074 |
Appl. No.: |
12/116109 |
Filed: |
May 6, 2008 |
Related U.S. Patent Documents
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
|
|
60928547 |
May 10, 2007 |
|
|
|
Current U.S.
Class: |
53/467 ;
383/211 |
Current CPC
Class: |
B65D 75/522 20130101;
B65D 33/01 20130101; B65D 75/5855 20130101; B65D 81/3461 20130101;
B65D 2205/00 20130101; B65D 75/008 20130101 |
Class at
Publication: |
53/467 ;
383/211 |
International
Class: |
B65B 7/14 20060101
B65B007/14; B65D 65/26 20060101 B65D065/26 |
Claims
1. A package comprising: a first wall; a second wall coupled to the
first wall at a peelably openable seal portion; a gusset coupled to
the first wall and the second wall, wherein the first wall, the
second wall, and gusset define an interior space; a vent portion
provided on at least one of the first wall and the second wall,
wherein the vent portion is configured to permit gases to escape
from the interior space; and a food product provided within the
interior; wherein at least one of the first wall and the second
wall comprises an anti-fog material on a surface facing the
interior space.
2. The package of claim 1 wherein the first wall, the second wall,
and the gusset are formed from a continuous length of material.
3. The package of claim 1 wherein the vent portion comprises at
least one perforation.
4. The package of claim 1 wherein the vent portion comprises a
plurality of slits in at least one of the first wall and the second
wall.
5. The package of claim 1 wherein at least one of the first wall
and the second wall includes a portion that is at least one of
transparent and translucent.
6. The package of claim 1 wherein the seal portion comprises a low
bond adhesive.
7. The package of claim 1 wherein the gusset is provided at a first
end of the package and a graspable portion is provided at a second
end located opposite the first end.
8. The package of claim 7 wherein the graspable portion is formed
by at least one of the first wall and the second wall.
9. The package of claim 7 wherein the gusset is provided at a first
end of the package and a second end is located opposite the first
end, wherein the first wall and the second wall define a width of
the package that widens from the first end to the second end.
10. The package of claim 9 wherein the first wall and the second
wall substantially conform to a shape of the food product so as to
resist deformation of the food product during heating.
11. A package comprising: a pair of generally opposing side walls
coupled together to define an interior; a vent portion provided on
at least one of the opposing side walls and configured to permit
fluid to escape from the interior; and an anti-fog material
provided on at least a portion of one of the opposing side walls;
wherein the opposing sidewalls define a width of the package that
narrows along a length of the package.
12. The package of claim 11 further comprising a support portion
configured to support the package in a generally upright
position.
13. The package of claim 12 wherein the package narrows in a
direction toward the support portion.
14. The package of claim 12 wherein the support portion is a gusset
that forms a W shape with the opposing sidewalls.
15. The package of claim 11 further comprising a resealably
openable portion permitting a user to resealably open a portion of
the package.
16. The package of claim 11 wherein the openable portion is
provided along a top portion opposite the support portion.
17. The package of claim 11 further comprising: a food product
provided within the interior; wherein the opposing sidewalls
substantially conform to a shape of the food product so as to
resist deformation of the food product during heating.
18. A method of providing a package having a food product
comprising: providing a package having at least one sidewall with
an anti-fog material, a vent portion, and a support portion coupled
to the at least one sidewall that supports the package in a
substantially upright position; introducing a food product into the
package; and sealing the package with a low-bond adhesive to
provide a peelably openable seal portion.
19. The method of claim 18 wherein the openable portion is
resealable.
20. The method of claim 18 wherein the support portion forms a W
shape with the at least one sidewall.
Description
CROSS-REFERENCE TO RELATED PATENT APPLICATIONS
[0001] This application claims priority from U.S. Provisional
Application No. 60/928,547, filed May 10, 2007, incorporated herein
by reference in its entirety.
BACKGROUND OF THE INVENTION
[0002] This application relates generally to packages and similar
items, and more particularly, to a package that provides features
including an anti-fog package material, a seal that facilitates
easy opening of the package (e.g., an "easy peel" feature),
self-venting features for permitting venting during heating of
packaged materials, and/or a package configuration (e.g., a gusset)
that permits the package to stand generally upright.
[0003] Packages for storing various types of products such as food
products (including liquids, solids, etc.) are generally known.
Often, though, these packages may lack one or more features that
facilitate the preparation of food products stored in such
packages, in addition to providing one or more benefits related to
the production, merchandising, and/or sale of such packages.
[0004] The present application discloses an improved package that
may provide one or more advantages over conventional packages. To
provide an inexpensive, reliable, and widely adaptable package that
avoids the problems of conventional packages would represent a
significant advance in the art.
SUMMARY
[0005] One embodiment relates to a package comprising a first wall,
a second wall coupled to the first wall at a peelably openable seal
portion, a gusset coupled to the first wall and the second wall,
wherein the first wall, the second wall, and gusset define an
interior space, a vent portion provided on at least one of the
first wall and the second wall, wherein the vent portion is
configured to permit gases to escape from the interior space, and a
food product provided within the interior, wherein at least one of
the first wall and the second wall comprises an anti-fog material
on a surface facing the interior space.
[0006] Another embodiment relates to a package comprising a pair of
generally opposing side walls coupled together to define an
interior, a vent portion provided on at least one of the opposing
side walls and configured to permit fluid to escape from the
interior, and an anti-fog material provided on at least a portion
of one of the opposing side walls, wherein the opposing sidewalls
define a width of the package that narrows along a length of the
package.
[0007] Yet another embodiment relates to A method of providing a
package having a food product comprising providing a package having
at least one sidewall with an anti-fog material, a vent portion,
and a support portion coupled to the at least one sidewall that
supports the package in a substantially upright position,
introducing a food product into the package, and sealing the
package with a low-bond adhesive to provide a peelably openable
seal portion.
[0008] Other embodiments further relate to various features and
combinations of features shown and described herein. Other ways in
which the objects and features of the disclosed embodiments are
accomplished will be described in the following specification or
will become apparent to those skilled in the art after they have
read this specification. Such other ways are deemed to fall within
the scope of this disclosure if they fall within the scope of the
claims which follow.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. 1 is a front view of a package according to an
exemplary embodiment.
[0010] FIG. 2 is a side view of the package of FIG. 1 according to
an exemplary embodiment.
[0011] FIG. 3 is a cross-section view of the package of FIG. 1
prior to being sealed according to an exemplary embodiment.
[0012] FIG. 4 is a cross-section view of a package material
according to an exemplary embodiment.
[0013] FIG. 5 is a front view of a package according to an
exemplary embodiment.
[0014] FIG. 6 is a side view of the package of FIG. 5 according to
an exemplary embodiment.
[0015] FIG. 7 is a cross-section view of the package of FIG. 5
prior to being sealed according to an exemplary embodiment.
[0016] FIG. 8 is a cross-section view of a package material
according to an exemplary embodiment.
[0017] Before explaining a number of exemplary embodiments in
detail, it is to be understood that the present application is not
limited to the details of construction and the arrangement of the
components as set forth in the following description or illustrated
in the drawings, but may be practiced or carried out in various
ways. It is also to be understood that the phraseology and
terminology employed herein is for the purpose of description and
should not be regarded as limiting.
DETAILED DESCRIPTION
[0018] Various exemplary embodiments of the package disclosed
herein illustrate a variety of features that provide advantages
over or address shortcomings of more conventional packages. For
example, certain packages may lack an anti-fog feature that
prevents fog from forming on the interior surface of, for example,
a clear package. Without such a feature, it may be difficult for
consumers to view the contents of the package and the package may
appear less sightly to the consumer. Further, certain packages may
not stand in an upright position (e.g., in the case of long, narrow
packages consisting generally of two pieces of plastic or other
material sealed along the entire outer edge). In order to permit
easy viewing of either the interior contents of the package or
information provided on the package itself, a consumer may be
required to lift the package from, for example, a display shelf, in
order to view the package information and/or contents.
[0019] Further yet, certain packages may be provided without any
venting features. Without such features, packages heated using, for
example, a microwave oven, may tend to rupture as the pressure
increases within the sealed package. Additionally, many packages
are provided without means for easy opening of the package, often
making the task of opening a package a difficult and potentially
messy one. Various embodiments of the package disclosed herein
address these and other disadvantages associated with conventional
packages.
[0020] Referring now to FIGS. 1-4, a package 10 (e.g., a pouch,
bag, container, etc.) is shown according to an exemplary
embodiment. Package 10 is configured to receive a food product 17,
which may be a non-refrigerated, refrigerated, or frozen food
product. Package 10 includes a top or upper portion 12 and a bottom
or lower portion 14. Package 10 further includes a first or front
wall portion or member 16 and a second or rear wall portion or
member 18. According to one embodiment, front wall 16 and rear wall
18 are generally symmetrical and define the front and rear surfaces
of package 10. A gusset portion 20 (e.g., support portion or
member, etc.) is provided at or near lower portion 14 and includes
a first gusset member or support portion 22 and a second gusset
member or support portion 24. Support portions 22, 24 are
positioned between front wall 16 and rear wall 18 and according to
one embodiment form a generally "W" shape in conjunction with walls
16, 18 (see, e.g., FIG. 3).
[0021] According to an exemplary embodiment, front wall 16 and rear
wall 18 may be sealed together (e.g., adhesively sealed, heat
sealed, ultrasonically welded, etc.) at side seal portions 26, 28
and at top seal portion 30. Front wall 16 and rear wall 18 define
an interior of package 10 that receives a food product 17.
According to one embodiment, side seal portions 26, 28 extend
generally along the periphery of the sides or edges of wall
portions 16, 18 and top seal portion 30 extends across walls 16, 18
offset from the upper edge of wall portions 16, 18, forming
grasping portions or tabs 32, 34. As shown in FIG. 2, because side
seal portions 26, 28 do not extend to tabs 32, 34, tabs 32, 34
remain unsealed and independent from each other and form graspable
portions for users. According to various alternative embodiments,
seals 26, 28, 30 may be located in various alternative locations,
and more or fewer sealed portions may be provided with package 10.
Furthermore, walls 16, 18 may be coupled together using other
methods in addition to or rather then sealing.
[0022] According to some embodiments, package 10 may include
self-venting features shown in FIG. 1 as perforations or vent
portions 36 and/or 38. As shown in FIG. 1, the self venting
features may be provided horizontally (see, e.g., vent portion 36),
vertically (see, e.g., vent portion 38), or in any other desirable
configuration and/or alignment (e.g., circles, curves, ornamental
configurations, etc.). Furthermore, package 10 may utilize a single
one of vent portions 36 and/or 38 or more than one of vent portions
36 and/or 38 according to various other embodiments.
[0023] While vent portions 36, 38 are shown as slits, a variety of
holes and/or apertures of various shapes and/or sizes may be used.
According to one embodiment, vent portion 36 and/or 38 extend fully
through material 42 (see FIG. 4) of package 10. According to
another embodiment, vent portion 36 and/or 38 may be configured as
a weakened area (e.g., an area of reduced material thickness or
reduced material strength, etc.) of material 42 configured to
rupture (e.g., due to excessive pressure build up within package
10) prior to the rupturing of the remainder of package 10
(including seal portion 26, 28, 30). According to yet another
embodiment, vent portion 36 and/or 38 may comprise a portion of one
or more of seals 26, 28, that has been weakened and/or omitted such
that gases, etc. may vent through one or more of the sealed
portions.
[0024] Referring further to FIGS. 1-4, according to an exemplary
embodiment, package 10 may include a display portion or area 40 on
one or both of walls 16, 18. Area 40 may include a portion of, or
all of, one or both of walls 16, 18, and may be transparent,
translucent, opaque, and may be provided with a variety of textual
information, graphic designs, etc. According to one embodiment,
area 40 is configured as a "window" to permit consumers to view
product within package 10 (e.g., in the case of "ready-made"
products that are prepared within package 10 and sold ready to be
consumed).
[0025] According to an exemplary embodiment, package 10 may be
provided with an easy peel feature (e.g., an easily peelable seal,
etc.). As shown in FIGS. 1-4, tabs 32 and 34 extend above top seal
portion 30 such that a user may grasp and pull apart tabs 32 and 34
in order to open package 10. Top seal 30 and side seals 26, 28 may
be provided with an easy release adhesive (e.g., a low bond
adhesive, etc.) that is sufficient to maintain product sealed
within package 10 during processing, transport, merchandising,
etc., yet permits a user to easily open package 10 when desired.
Seals 26, 28, 30 may also provide a controlled opening feature, in
that the seals are configured to release (e.g., come apart, etc.)
prior to the other portions of the packaging material ripping,
tearing, etc., which may potentially result in spillage and/or
waste of the contents of package 10.
[0026] According to one embodiment, the easy peel feature provided
with package 10 is a one-time-use seal. According to various
alternative embodiments, other types of seals and/or closure
devices or mechanisms may be used instead of or in conjunction with
seals 26, 28, 30 (e.g., a resealable portion provided in addition
to and adjacent to top seal portion 30).
[0027] In some embodiments, package 10 may also be configured to
stand in a substantially upright position when filled with product.
Gusset portion 20 may provide a support area that maintains package
10 in an upright position, thereby facilitating marketing and
packaging of product contained therein (e.g., by making it easier
for consumers to see the product with package 10, by maintaining
liquid or semi-solid materials in a generally stable position,
etc.). As discussed above gusset portion 20 includes portions 22
and 24.
[0028] According to one embodiment, walls 16, 18 and gusset
portions 22, 24 may be made from a continuous length of a material
42 (e.g., a flexible polymer laminate, etc.) comprising a first
inner layer 44 (e.g., a polyester) laminated to a second outer
layer 46 (e.g., a sealant layer that provides an easy peel feature
and/or an anti-fog feature). Material 42 may be a roll stock
material that may be folded, die cut, and heat sealed using
automated tooling and processes to form package 10. Further, vent
portions 36, 38 may be formed in material 42 using automated
tooling (e.g., a piercing wheel configured to form perforations in
material 42). According to various alternative embodiments, gusset
portions 22, 24 may be made from a separate length of material 42
and/or a material other than material 42.
[0029] As can be seen in FIGS. 1-4, when package 10 is sealed only
at side seal portions 26, 28 (e.g., with top seal portion 30
unsealed and no product within package 10), package 10 is a
generally flat member. After product is introduced into package 10
and top seal portion 30 is sealed, the product tends to force open
or spread apart gusset portions 22, 24 such that the bottom edges
of gusset portions 22, 24 and walls 16, 28 form a stable support
that enables a user to stand package 10 in an upright position.
[0030] According to an exemplary embodiment, package 10 may further
be provided with an anti-fog feature. According to one embodiment,
an anti-fog material is embedded into second layer 46 (e.g., along
with the easy peel seal material), which is then laminated to first
layer 44 to form material 42. The anti-fog material resists fogging
(clouding, discoloring, etc.) of material 42 after product has been
sealed into package 10. In particular, the anti-fog material is
configured to resist fogging due to extreme and/or sudden
temperature changes (e.g., in the case of a package containing
frozen food product being subsequently heated in a microwave,
etc.). The anti-fog material may be made of any suitable materials,
compounds, etc., known to those skilled in the art.
[0031] Referring now to FIGS. 5-8, a package 110 is shown according
to another exemplary embodiment. Package 110 is substantially
similar to package 10 in that package 110 includes upper portion
112, bottom portion 114, front wall 116, and rear wall 118. Package
110 may further include a gusset portion 120 having first and
second gusset portions 122, 124 that permit package 110 to stand
upright. Further, package 110 may include easy peel, anti-fog, and
self-venting features similar to those discussed above with respect
to package 10 and FIGS. 1-4.
[0032] Referring in particular to FIG. 5, according to an exemplary
embodiment, package 110 may be tapered from top portion 112 to
bottom portion 114. According to one embodiment, package 110 tapers
from approximately 3.5 inches at top portion 112 to approximately
1.5 inches at bottom portion 114. According to various alternative
embodiments, package 110 may be provided with other types of
tapers, including curved contours, etc., and package 110 may
further taper from bottom portion 114 to top portion 112 rather
than top portion 112 to bottom portion 114. According to an
exemplary embodiment, package 110 is configured to substantially
conform to the shape of a food product (e.g., a food product
intended to be heated and offered for sale while within package 110
in the heated state) such that package 110 assists in maintaining
the shape of the food product (e.g., to prevent folding, etc. of a
heated food product) while the product is being displayed in an
upright position. According to various alternative embodiments,
package 110 may be tapered or otherwise contoured in ways other
than those illustrated in FIG. 5.
[0033] According to an exemplary embodiment, front wall 116 and
rear wall 118 may be sealed together (e.g., adhesively sealed, heat
sealed, ultrasonically welded, etc.) at side seal portions 126, 128
and at top seal portion 130. According to one embodiment, side seal
portions 126, 128 extend generally along the periphery of the sides
or edges of wall portions 116, 118, and top seal portion 130
extends across walls 116, 118 offset from the upper edge of wall
portions 116, 118, forming grasping portions or tabs 132, 134. As
shown in FIG. 6, because side seal portions 126, 128 do not extend
to tabs 132, 134, tabs 132, 134 remain unsealed and independent
from each other and form graspable portions for users. According to
various alternative embodiments, seals 126, 128, 130 may be located
in various alternative locations, and more or fewer sealed portions
may be provided with package 110. Furthermore, walls 116, 118 may
be coupled together using other methods in addition to or rather
then sealing.
[0034] According to some embodiments, package 110 may include
self-venting features shown in FIG. 5 as perforations or vent
portions 136 and/or 138. As shown in FIG. 5, the self venting
features may be provided horizontally (see, e.g., vent portion
136), vertically (see, e.g., vent portion 138), or in any other
desirable configuration and/or alignment (e.g., circles, curves,
ornamental configurations, etc.).
[0035] Referring further to FIGS. 5-8, according to an exemplary
embodiment, package 110 may include a display portion or area 140
on one or both of walls 116, 118. Area 140 may include a portion
of, or all of, one or both of walls 116, 118, and may be
transparent, translucent, opaque, and may be provided with a
variety of graphic designs, etc. According to one embodiment, area
140 is configured as a "window" to permit consumers to view product
within package 110 (e.g., in the case of "ready-made" products that
are prepared within package 110 and sold ready to be consumed).
[0036] According to one embodiment, walls 116, 118 and gusset
portions 122, 124 may be made from a continuous length of a
material 142 (e.g., a flexible polymer laminate, etc.) comprising a
first inner layer 144 (e.g., a polyester) laminated to a second
outer layer 146 (e.g., a sealant layer that provides an easy peel
feature and/or an anti-fog feature). Material 142 may be a roll
stock material that may be folded, die cut, and heat sealed using
automated tooling and processes to form package 110. Further, vent
portions 136, 138 may be formed in material 142 using automated
tooling (e.g., a piercing wheel configured to form perforations in
material 142). According to various alternative embodiments, gusset
portions 122, 124 may be made from a separate length of material
142 and/or a material other than material 142.
[0037] According to various exemplary embodiments, the packages
shown and described herein may include a variety of food products
(e.g., food product 17), including solids (breads, cheeses, etc.),
liquids juices, sauces, etc.), and so on. According to various
exemplary embodiments, the food product may be wholly or partially
unrefrigerated, refrigerated, and/or frozen during processing,
retailing, etc. In some embodiments, the food product is introduced
into the interior of the package after the side seal portions
(e.g., seal portions 16, 18 or 116, 118) are sealed. Upon the food
product being introduced into the interior, the top seal portion
(e.g. seal portion 30 or 130) may be sealed.
[0038] It is important to note that for purposes of this
disclosure, the term "coupled" shall mean the joining of two
members directly or indirectly to one another. Such joining may be
stationary in nature or movable in nature. Such joining may be
achieved with the two members or the two members and any additional
intermediate members being integrally formed as a single unitary
body with one another or with the two members or the two members
and any additional intermediate member being attached to one
another. Such joining may be permanent in nature or alternatively
may be removable or releasable in nature. Such joining may also
relate to mechanical, fluid, or electrical relationship between the
two components.
[0039] It is also important to note that the construction and
arrangement of the elements of the package shown in the exemplary
embodiments are illustrative only. Although only a few embodiments
have been described in detail in this disclosure, those skilled in
the art who review this disclosure will readily appreciate that
many modifications are possible (e.g., variations in sizes,
dimensions, structures, shapes and proportions of the various
elements, values of parameters, mounting arrangements, materials,
colors, orientations, etc.) without materially departing from the
novel teachings and advantages of the subject matter recited in the
claims. Accordingly, all such modifications are intended to be
included within the scope of the present disclosure as defined in
the appended claims. The order or sequence of any process or method
steps may be varied or re-sequenced according to alternative
embodiments. In the claims, any means-plus-function clause is
intended to cover the structures described herein as performing the
recited function and not only structural equivalents but also
equivalent structures. Other substitutions, modifications, changes
and/or omissions may be made in the design, operating conditions
and arrangement of the exemplary embodiments without departing from
the spirit of the present disclosure as expressed in the appended
claims.
* * * * *